<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
    <head>
        <title>CSS Test: Clearance calculations - clear box collapsing margins</title>
        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
        <link rel="help" href="http://www.w3.org/TR/CSS21/visuren.html#flow-control" />
        <meta name="flags" content="" />
        <meta name="assert" content="When a cleared element has more top margin than the height of the floated element the margin is collpased with previous in-flow children. The element is then placed at the point of the resulting collapsed margin." />
        <!-- C1 = H-MT2 -->
        <!-- C2 = Max(M1, MT2, MB2) - M1 - MT2 -->
        <style type="text/css">* { margin: 0; padding: 0 }
            div
            {
                font: 20px/1em Ahem;
                width: 5em;
            }
            #parent
            {
                background: url('support/clear-clearance-calculation-003.png');
                min-height: 7em;
                position: relative;
            }
            #div1
            {
                margin-bottom: 1em;
            }
            #div2
            {
                float: left;
                margin: 0;
            }
            #div3
            {
                background: red;
                clear: left;
                margin-bottom: 5em;
                margin-top: 4em;
            }
            #div1, #div2, #div4
            {
                background: green;
                height: 1em;
            }
        </style>
    </head>
    <body>
        <p>Test passes if there is no red on this page.</p>
        <div id="parent">
            <div id="div1"></div>
            <div id="div2"></div>
            <div id="div3"></div>
            <div id="div4"></div>
        </div>
    </body>
</html>